[PATCH] xserver: enable InputClass option "GrabDevice" by default for non-seat0 seats (#69478)

[Peter Hutterer]

From: Laércio de Sousa <lbsousajr at gmail.com>

This patch contributes to fill the remaining gaps which make
systemd-multi-seat-x wrapper still necessary in some multiseat setups.

This also replaces previous evdev patch that does the same thing
for that particular driver.

When option "-seat" is passed with an argument different from "seat0",
option "GrabDevice" for input devices is enabled by default
(no need of enabling it in xorg.conf's "InputClass" section).

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=69478

Signed-off-by: Laércio de Sousa <lbsousajr at gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer at who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
---
fwiw, evdev, synaptics and wacom all support the GrabDevice option.

 config/udev.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/config/udev.c b/config/udev.c
index de89241..b55b78e 100644
--- a/config/udev.c
+++ b/config/udev.c
@@ -226,6 +226,10 @@ device_added(struct udev_device *udev_device)
 
     input_options = input_option_new(input_options, "config_info", config_info);
 
+    /* Default setting needed for non-seat0 seats */
+    if (ServerIsNotSeat0())
+        input_options = input_option_new(input_options, "GrabDevice", "on");
+
     LogMessage(X_INFO, "config/udev: Adding input device %s (%s)\n",
                name, path);
     rc = NewInputDeviceRequest(input_options, &attrs, &dev);
-- 
1.8.3.1